Why would Xiaomi prefer to pay Qualcomm's patent fees instead of investing heavily in self research?

Why would Xiaomi rather pay a patent fee to Qualcomm than rely on its own efforts?In certain technological aspects, Apple's bumpy experience tells us that they cannot bypass Qualcomm patents. Huawei is also forced to use low-end versions of Qualcomm Snapdragon chip products!Qualcomm's patent is a barrier that many mobile phone manufacturers cannot overcome! So don't keep talking about Xiaomi...

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